<div *ngIf="s2">
  <div class="d-flex justify-content-center">
    <div class="d-flex align-items-center login-content">
      <form [formGroup]="myForm" (ngSubmit)="onSubmit(myForm.value)">
        <h3 class="d-flex justify-content-center">用户登录</h3>
        <p class="text-primary" *ngIf="myForm.invalid">表单无效!</p>
        <p>{{name$ | async}}</p>
        <div class="form-group">
          <label for="userName">用户名</label>
          <input type="text" class="form-control" id="userName" aria-describedby="输入用户名" name="userName"
            [formControl]="userName" [ngClass]="{'is-invalid':userName.invalid,'is-valid':userName.valid}">
          <div class="valid-feedback">
            用户名格式正确！
          </div>
          <div class="invalid-feedback">
            <span *ngIf="userName.hasError('required')">
              用户名必须填写!
            </span>
            <span *ngIf="!userName.hasError('required') && userName.hasError('invalidUser')">
              用户名必须以Zime开头!
            </span>
            <span
              *ngIf="!userName.hasError('required') && !userName.hasError('invalidUser') && userName.hasError('minlength')">
              用户名至少3位！
            </span>
            <span
              *ngIf="!userName.hasError('required') && !userName.hasError('invalidUser') && userName.hasError('maxlength')">
              用户名最多20位！
            </span>
          </div>
        </div>
        <div class="form-group">
          <label for="password">密码</label>
          <input type="password" class="form-control" id="password" name="password" [formControl]="password"
            [ngClass]="{'is-invalid': password.invalid , 'is-valid': password.valid}">
          <div class="valid-feedback">
            密码格式正确！
          </div>
          <div class="invalid-feedback">
            <span *ngIf="password.hasError(required)">
              密码必须填写！
            </span>
            <span *ngIf="!password.hasError(required) && password.hasError('minlength')">
              密码至少6位！
            </span>
            <span *ngIf="!password.hasError(required) && password.hasError('maxlength')">
              密码最多16位！
            </span>
          </div>
        </div>
        <button type="submit" class="btn btn-primary btn-block">提交</button>
      </form>
    </div>
  </div>
</div>


<div *ngIf="s1">
  <div>这是第二个页面</div>
</div>